The Document Checking preferences panel is opened from menu Editor+Document Checking
→ → +Validation of edited document is executed as the document is modified by editing in <oXygen/>.
The period of keyboard inactivity which starts a new validation (in seconds).
If there are many validation errors the process of marking them in the document is long. You should limit the maximum number of reported errors with this setting to keep the time for error marking short
When a document edited with the <oXygen/> plugin is closed all the error markers added in the Problems view for the validation errors obtained for that document are removed.